Highly flammable formulation. Do not sprat on energised electrical equipment or circuits, de-activate before product application, and extinguish all flames, pilot lights, and heaters.
Test before use on sensitive plastics, adhesive mounted, or stressed parts.
Locate the sensor: mostly mounted between the air inlet filter of the engine and the inlet manifold.
Disconnect the sensor from the electrical circuit.
Mark the position of the sensor and its housing. Depending on the type of sensor and/or the way the sensor is built in, either dismount the complete unit, or dismount and take out the sensor from the housing.
Use the extension tube and spray liberally on the hot wire/plate and the thermistor. Allow running off. Be careful not to touch the sensitive hot wire/plate, nor the thermistor or its connections with the extension tube, the aerosol, or your fingers.
Allow solvents to evaporate completely before building in the sensor again. Beware to put the sensor, o-ring, or other gasket in the right position.
Connect the sensor back to the electrical circuit.